usn-5260-2
Vulnerability from osv_ubuntu
Published
2022-02-01 11:56
Modified
2026-04-22 07:37
Summary
samba vulnerability
Details
Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled certain memory operations. A remote attacker could use this issue to cause Samba to crash, resulting in a denial of service, or possibly execute arbitrary code as root. (CVE-2021-44142)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-44142",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ctdb",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "libnss-winbind",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "libpam-winbind",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "libparse-pidl-perl",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "libsmbclient",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "libwbclient0",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "python-samba",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "registry-tools",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "samba",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "samba-common",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "samba-common-bin",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "samba-dsdb-modules",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "samba-libs",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "samba-testsuite",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "samba-vfs-modules",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "smbclient",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
},
{
"binary_name": "winbind",
"binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "samba",
"purl": "pkg:deb/ubuntu/samba@2:4.7.6+dfsg~ubuntu-0ubuntu2.28?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:4.7.6+dfsg~ubuntu-0ubuntu2.28"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:4.6.7+dfsg-1ubuntu3",
"2:4.7.1+dfsg-1ubuntu1",
"2:4.7.3+dfsg-1ubuntu1",
"2:4.7.4+dfsg-1ubuntu1",
"2:4.7.6+dfsg~ubuntu-0ubuntu1",
"2:4.7.6+dfsg~ubuntu-0ubuntu2",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.2",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.4",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.5",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.6",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.7",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.9",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.10",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.11",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.14",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.15",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.16",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.17",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.18",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.19",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.20",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.21",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.23",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.24",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.26",
"2:4.7.6+dfsg~ubuntu-0ubuntu2.27"
]
}
],
"aliases": [],
"details": "Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled\ncertain memory operations. A remote attacker could use this issue to cause\nSamba to crash, resulting in a denial of service, or possibly execute\narbitrary code as root. (CVE-2021-44142)\n",
"id": "USN-5260-2",
"modified": "2026-04-22T07:37:01Z",
"published": "2022-02-01T11:56:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5260-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-44142"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "samba vulnerability",
"upstream": [
"UBUNTU-CVE-2021-44142"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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